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GB-L20 vs BOS-G20 10 of 19 identical Swap Change batteries

Deye GB-L20 vs Deye BOS-G20

Deye GB-L20
GB-L20
18.4 kWh LFP HV
Open battery page Datasheet PDF
VS
Deye BOS-G20
BOS-G20
18.43 kWh LFP HV
Open battery page Datasheet PDF
The verdict

GB-L20 leads on the differences that matter

The largest is max system capacity: 36.9 kWh more room to expand. 10 of 19 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 19 parameters
Parameter GB-L20 BOS-G20 Difference
Max system capacity 24.5 kWh 61.4 kWh 36.9 kWh more room to expand
Nominal voltage 512 V 205 V 307 V apart
Weight 214.0 kg 420.0 kg 206.0 kg lighter
Weight per kWh 11.6 kg/kWh 22.8 kg/kWh 11.2 kg/kWh lighter
Max operating temperature 60 °C 55 °C 5 °C more heat tolerant
Ingress protection IP65 IP20 IP65 vs IP20
Modules per stack 2-6 3-12 2-6 vs 3-12
Operating voltage 166.4-700 V 166.4-233.6 V 166.4-700 V vs 166.4-233.6 V
Dimensions 1310x540x385 mm 1629x530x602 mm 1310x540x385 mm vs 1629x530x602 mm

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02

Full specification

Parameter GB-L20 BOS-G20 Difference
Capacity
Usable energy 18.40 kWh 18.43 kWh Effectively the same
Nominal energy 20.45 kWh 20.48 kWh Effectively the same
Depth of discharge 90 % 90 % Same
Max system capacity 24.5 kWh 61.4 kWh +36.9 kWh for BOS-G20
Modules per stack 2-6 3-12 2-6 vs 3-12
Power
Continuous discharge power 20.48 kW - Not published by Deye
Continuous charge power 20.48 kW - Not published by Deye
Peak discharge power 25.60 kW - Not published by Deye
Power per kWh 1.11 kW/kWh - Not published by Deye
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth - 90 % Not published by Deye
Capacity at end of life 70 % 70 % Same
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage 512 V 205 V 307 V apart
Operating voltage 166.4-700 V 166.4-233.6 V 166.4-700 V vs 166.4-233.6 V
Cell chemistry LFP LFP Same
Active cell balancing - - Neither datasheet publishes this
Thermal management Yes - Not published by Deye
Built-in inverter
Inverter None (battery only) None (battery only) Same
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 214.0 kg 420.0 kg -206.0 kg for GB-L20
Weight per kWh 11.6 kg/kWh 22.8 kg/kWh -11.2 kg/kWh for GB-L20
Dimensions 1310x540x385 mm 1629x530x602 mm 1310x540x385 mm vs 1629x530x602 mm
Ingress protection IP65 IP20 IP65 vs IP20
Outdoor-rated Yes - Not published by Deye
Min operating temperature -20 °C -20 °C Same
Max operating temperature 60 °C 55 °C +5 °C for GB-L20
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - - Neither datasheet publishes this
03

More useful comparisons

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Deye GB-L20 vs Deye GB-SL-EU (5 modules in series)
5 differences, the largest is weight
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11 differences, the largest is continuous discharge power
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Deye GB-L20 vs Dyness Tower Pro TP19
16 differences, the largest is usable energy
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.